BR8400466A - PROCESS FOR THE PREPARATION OF BENZOFURANO DERIVATIVES - Google Patents

PROCESS FOR THE PREPARATION OF BENZOFURANO DERIVATIVES

Info

Publication number
BR8400466A
BR8400466A BR8400466A BR8400466A BR8400466A BR 8400466 A BR8400466 A BR 8400466A BR 8400466 A BR8400466 A BR 8400466A BR 8400466 A BR8400466 A BR 8400466A BR 8400466 A BR8400466 A BR 8400466A
Authority
BR
Brazil
Prior art keywords
derivatives
benzofurano
preparation
production
pyrocatechol
Prior art date
Application number
BR8400466A
Other languages
Portuguese (pt)
Inventor
Paolo Maggioni
Francesco Minisci
Mariano Correale
Original Assignee
Brichima Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brichima Spa filed Critical Brichima Spa
Publication of BR8400466A publication Critical patent/BR8400466A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
    • C07D307/86—Benzo [b] furans; Hydrogenated benzo [b] furans with an oxygen atom directly attached in position 7

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Furan Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Catalysts (AREA)

Abstract

A process for the production of benzofuran derivatives having the general formula, <IMAGE> wherein R is alkyl, in particular of 2,3-dihydro-2,2-dimethyl benzofuran-7-ol, starting from pyrocatechol ethers in one step operation. The process essentially consists of heating a solution of pyrocatechol ether in an inert organic solvent in the presence of a catalyst comprising metals of 3 DEG and 4 DEG group of the Periodic System in form of carboxylates or of modified zeolites. The products are known intermediates for the production of insecticides.
BR8400466A 1983-02-04 1984-02-03 PROCESS FOR THE PREPARATION OF BENZOFURANO DERIVATIVES BR8400466A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT19429/83A IT1199987B (en) 1983-02-04 1983-02-04 PROCESS FOR THE PRODUCTION OF BENZOFURANIC DERIVATIVES

Publications (1)

Publication Number Publication Date
BR8400466A true BR8400466A (en) 1984-09-11

Family

ID=11157849

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8400466A BR8400466A (en) 1983-02-04 1984-02-03 PROCESS FOR THE PREPARATION OF BENZOFURANO DERIVATIVES

Country Status (13)

Country Link
US (1) US4816592A (en)
EP (1) EP0115837B1 (en)
JP (1) JPS59167583A (en)
KR (1) KR900003280B1 (en)
AT (1) ATE33024T1 (en)
AU (1) AU558343B2 (en)
BR (1) BR8400466A (en)
DE (1) DE3469897D1 (en)
ES (1) ES8506687A1 (en)
IL (1) IL70863A (en)
IN (1) IN158381B (en)
IT (1) IT1199987B (en)
ZA (1) ZA84763B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4877441A (en) * 1987-11-06 1989-10-31 Sumitomo Chemical Company Ltd. Fungicidal substituted carboxylic acid derivatives
CN101979387A (en) * 2010-09-25 2011-02-23 长沙理工大学 Method for synthesizing furan phenol by using aluminum dicarboxylate phenol as catalyst
US11124724B2 (en) 2018-12-05 2021-09-21 Hm3 Energy, Inc. Method for producing a water-resistant, compressed biomass product

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681371A (en) * 1950-12-14 1954-06-15 Universal Oil Prod Co Production of ortho substituted phenols, particularly ortho substituted hydroquinones
US3474170A (en) * 1964-01-23 1969-10-21 Fmc Corp Pesticidal carbamates of dihydrobenzofuranols
FR2461708A1 (en) * 1979-07-18 1981-02-06 Rhone Poulenc Agrochimie PREPARATION OF DIHYDRODIMETHYLHYDROXY-7 BENZOFURAN
DE2932458A1 (en) * 1979-08-10 1981-02-26 Bayer Ag PRODUCTION OF MONOALKYL ETHERS FROM HYDROXYPHENOLS AND THEIR CONVERSION TO HYDROXYCUMARANES
FR2470768A1 (en) * 1979-12-07 1981-06-12 Rhone Poulenc Agrochimie PROCESS FOR THE PREPARATION OF BENZOFURAN DERIVATIVES
US4380654A (en) * 1982-02-18 1983-04-19 Fmc Corporation Process for preparation of 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran
FR2536395A1 (en) * 1982-11-18 1984-05-25 Rhone Poulenc Agrochimie PROCESS FOR THE PREPARATION OF 2,3-DIHYDRO-2,2-DIMETHYL-7-HYDROXY BENZOFURAN

Also Published As

Publication number Publication date
EP0115837B1 (en) 1988-03-16
JPS59167583A (en) 1984-09-21
IT1199987B (en) 1989-01-05
IT8319429A0 (en) 1983-02-04
AU558343B2 (en) 1987-01-29
JPH0412266B2 (en) 1992-03-04
EP0115837A1 (en) 1984-08-15
US4816592A (en) 1989-03-28
AU2399384A (en) 1984-08-09
IL70863A (en) 1987-09-16
KR900003280B1 (en) 1990-05-12
ES529450A0 (en) 1985-08-01
IL70863A0 (en) 1984-05-31
ES8506687A1 (en) 1985-08-01
ZA84763B (en) 1984-09-26
DE3469897D1 (en) 1988-04-21
IN158381B (en) 1986-11-01
ATE33024T1 (en) 1988-04-15
KR840007594A (en) 1984-12-08

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Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 03/02/99